function getCode(local, state) {
	var code = ''
	var appid = 'wx79a63a05c11506d8'
	code = getUrlParam('code')
	if (!code) {
		if (!state) {
			window.location.href = 'https://open.weixin.qq.com/connect/oauth2/authorize' +
				'?appid=' + appid +
				'&redirect_uri=' + encodeURIComponent(local) +
				'&response_type=code' +
				'&scope=snsapi_userinfo' +
				'&state=STATE#wechat_redirect'
		} else {
			window.location.href = 'https://open.weixin.qq.com/connect/oauth2/authorize' +
				'?appid=' + appid +
				'&redirect_uri=' + encodeURIComponent(local) +
				'&response_type=code' +
				'&scope=snsapi_userinfo' +
				'&state=' + state +
				'#wechat_redirect'
		}
	}
	return code
}

function getUrlParam(name) {
	var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)"); //构造一个含有目标参数的正则表达式对象
	var r = window.location.search.substr(1).match(reg); //匹配目标参数
	if (r != null) return unescape(r[2]);
	return null; //返回参数值
}

function checkPhoneNumber(num) {
	if (/^[1][3,4,5,7,8,9][0-9]{9}$/.test(num)) {
		return true
	}
	return false
}

function checkIdcard(num) {
	// num = num.toUpperCase();
	//身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X。
	if (!(/(^\d{17}([0-9]|X)$)/.test(num))) {
		// alert('输入的身份证号长度不对，或者号码不符合规定！18位号码末位可以为数字或X。');
		return false;
	}
	//校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
	//下面分别分析出生日期和校验位
	var len, re;
	len = num.length;
	if (len == 15) {
		re = new RegExp(/^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/);
		var arrSplit = num.match(re);

		//检查生日日期是否正确
		var dtmBirth = new Date('19' + arrSplit[2] + '/' + arrSplit[3] + '/' + arrSplit[4]);
		var bGoodDay;
		bGoodDay = (dtmBirth.getYear() == Number(arrSplit[2])) && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3])) &&
			(dtmBirth.getDate() == Number(arrSplit[4]));
		if (!bGoodDay) {
			// alert('输入的身份证号里出生日期不对！');
			return false;
		} else {
			//将15位身份证转成18位
			//校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
			var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
			var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
			var nTemp = 0,
				i;
			num = num.substr(0, 6) + '19' + num.substr(6, num.length - 6);
			for (i = 0; i < 17; i++) {
				nTemp += num.substr(i, 1) * arrInt[i];
			}
			num += arrCh[nTemp % 11];
			return true;
		}
	}
	if (len == 18) {
		re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/);
		var arrSplit = num.match(re);

		//检查生日日期是否正确
		var dtmBirth = new Date(arrSplit[2] + "/" + arrSplit[3] + "/" + arrSplit[4]);
		var bGoodDay;
		bGoodDay = (dtmBirth.getFullYear() == Number(arrSplit[2])) && ((dtmBirth.getMonth() + 1) == Number(arrSplit[
			3])) && (dtmBirth.getDate() == Number(arrSplit[4]));
		if (!bGoodDay) {
			// alert('输入的身份证号里出生日期不对！');
			return false;
		} else {
			//检验18位身份证的校验码是否正确。
			//校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
			var valnum;
			var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
			var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
			var nTemp = 0,
				i;
			for (i = 0; i < 17; i++) {
				nTemp += num.substr(i, 1) * arrInt[i];
			}
			valnum = arrCh[nTemp % 11];
			if (valnum != num.substr(17, 1)) {
				// alert('18位身份证的校验码不正确！应该为：' + valnum);
				return false;
			}
			return true;
		}
	}
	return false;
}

function calcTimer(timer) {
	if (timer === 0 || typeof timer !== 'number') {
		return '00:00'
	}
	let mm = Math.floor(timer / 60)
	let ss = Math.floor(timer % 60)
	if (mm < 10) {
		mm = '0' + mm
	}
	if (ss < 10) {
		ss = '0' + ss
	}
	return mm + ':' + ss
}

export {
	checkPhoneNumber,
	checkIdcard,
	getUrlParam,
	getCode,
	calcTimer
}
